/* Общие стили */
* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

:root {
    /* Светлая цветовая палитра для квадрантов */
    --quadrant-1-bg: #E8F5E9; /* Светло-зелёный */
    --quadrant-1-hover: #C8E6C9;
    --quadrant-1-accent: #4CAF50;
    
    --quadrant-2-bg: #E3F2FD; /* Светло-синий */
    --quadrant-2-hover: #BBDEFB;
    --quadrant-2-accent: #2196F3;
    
    --quadrant-3-bg: #FFF3E0; /* Светло-оранжевый */
    --quadrant-3-hover: #FFE0B2;
    --quadrant-3-accent: #FF9800;
    
    --quadrant-4-bg: #F3E5F5; /* Светло-фиолетовый */
    --quadrant-4-hover: #E1BEE7;
    --quadrant-4-accent: #9C27B0;
    
    --cross-color: #BDBDBD; /* Серый для креста */
    --text-primary: #212121;
    --text-secondary: #757575;
    --text-light: #FFFFFF;
    --shadow: rgba(0, 0, 0, 0.1);
    --shadow-hover: rgba(0, 0, 0, 0.15);
}

body {
    font-family: 'Segoe UI', Tahoma, Geneva, Verdana, sans-serif;
    background: linear-gradient(135deg, #f5f7fa 0%, #c3cfe2 100%);
    min-height: 100vh;
    color: var(--text-primary);
    overflow-x: hidden;
}

.main-container {
    min-height: 100vh;
    display: flex;
    flex-direction: column;
    position: relative;
    padding: 20px;
}

/* Заголовок */
.main-header {
    text-align: center;
    padding: 40px 20px;
    margin-bottom: 20px;
}

.main-header h1 {
    font-size: 3.5rem;
    font-weight: 700;
    color: var(--text-primary);
    margin-bottom: 10px;
    text-shadow: 2px 2px 4px var(--shadow);
}

.main-header h1 i {
    color: var(--quadrant-1-accent);
    margin-right: 15px;
}

.subtitle {
    font-size: 1.2rem;
    color: var(--text-secondary);
    font-weight: 300;
}

/* Контейнер сетки */
.grid-container {
    flex: 1;
    display: grid;
    grid-template-columns: 1fr 1fr;
    grid-template-rows: 1fr 1fr;
    gap: 0;
    width: 100%;
    max-width: 1400px;
    margin: 0 auto;
    position: relative;
    min-height: 600px;
}

/* Квадранты */
.quadrant {
    position: relative;
    display: flex;
    align-items: center;
    justify-content: center;
    padding: 40px;
    transition: all 0.3s ease;
    border: 1px solid rgba(255, 255, 255, 0.3);
    cursor: pointer;
}

.quadrant-link {
    text-decoration: none;
    color: inherit;
    width: 100%;
    height: 100%;
    display: flex;
    align-items: center;
    justify-content: center;
}

.quadrant-1 {
    background: var(--quadrant-1-bg);
    border-top-left-radius: 20px;
}

.quadrant-1:hover {
    background: var(--quadrant-1-hover);
    transform: scale(1.02);
    box-shadow: 0 8px 24px var(--shadow-hover);
    z-index: 10;
}

.quadrant-2 {
    background: var(--quadrant-2-bg);
    border-top-right-radius: 20px;
}

.quadrant-2:hover {
    background: var(--quadrant-2-hover);
    transform: scale(1.02);
    box-shadow: 0 8px 24px var(--shadow-hover);
    z-index: 10;
}

.quadrant-3 {
    background: var(--quadrant-3-bg);
    border-bottom-left-radius: 20px;
}

.quadrant-3:hover {
    background: var(--quadrant-3-hover);
    transform: scale(1.02);
    box-shadow: 0 8px 24px var(--shadow-hover);
    z-index: 10;
}

.quadrant-4 {
    background: var(--quadrant-4-bg);
    border-bottom-right-radius: 20px;
}

.quadrant-4:hover {
    background: var(--quadrant-4-hover);
    transform: scale(1.02);
    box-shadow: 0 8px 24px var(--shadow-hover);
    z-index: 10;
}

/* Содержимое квадранта */
.quadrant-content {
    text-align: center;
    width: 100%;
    max-width: 400px;
}

.quadrant-icon {
    font-size: 4rem;
    margin-bottom: 20px;
    color: var(--text-primary);
    transition: transform 0.3s ease;
}

.quadrant:hover .quadrant-icon {
    transform: scale(1.1) rotate(5deg);
}

.quadrant-1 .quadrant-icon {
    color: var(--quadrant-1-accent);
}

.quadrant-2 .quadrant-icon {
    color: var(--quadrant-2-accent);
}

.quadrant-3 .quadrant-icon {
    color: var(--quadrant-3-accent);
}

.quadrant-4 .quadrant-icon {
    color: var(--quadrant-4-accent);
}

.quadrant-content h2 {
    font-size: 2rem;
    font-weight: 600;
    margin-bottom: 15px;
    color: var(--text-primary);
}

.quadrant-content p {
    font-size: 1.1rem;
    color: var(--text-secondary);
    line-height: 1.6;
    margin-bottom: 20px;
}

/* Бейджи */
.quadrant-badge {
    display: inline-block;
    padding: 8px 20px;
    border-radius: 20px;
    font-size: 0.9rem;
    font-weight: 600;
    background: var(--quadrant-1-accent);
    color: var(--text-light);
    box-shadow: 0 2px 8px var(--shadow);
}

.quadrant-1 .quadrant-badge {
    background: var(--quadrant-1-accent);
}

.badge-coming {
    background: var(--text-secondary);
    opacity: 0.7;
}

.quadrant-badge i {
    margin-right: 5px;
}

/* Состояние "Скоро" */
.coming-soon {
    opacity: 0.8;
}

.coming-soon .quadrant-icon {
    opacity: 0.5;
}

/* Футер */
.main-footer {
    text-align: center;
    padding: 30px 20px;
    margin-top: 40px;
    color: var(--text-secondary);
    font-size: 0.9rem;
}

/* Адаптивность для мобильных устройств */
@media (max-width: 768px) {
    .main-header h1 {
        font-size: 2.5rem;
    }
    
    .subtitle {
        font-size: 1rem;
    }
    
    .grid-container {
        grid-template-columns: 1fr;
        grid-template-rows: repeat(4, 1fr);
        min-height: auto;
    }
    
    .quadrant {
        border-radius: 15px;
        margin-bottom: 15px;
        min-height: 250px;
    }
    
    .quadrant-1,
    .quadrant-2,
    .quadrant-3,
    .quadrant-4 {
        border-radius: 15px;
    }
    
    .quadrant-icon {
        font-size: 3rem;
    }
    
    .quadrant-content h2 {
        font-size: 1.5rem;
    }
    
    .quadrant-content p {
        font-size: 1rem;
    }
}

@media (max-width: 480px) {
    .main-container {
        padding: 10px;
    }
    
    .main-header {
        padding: 20px 10px;
    }
    
    .main-header h1 {
        font-size: 2rem;
    }
    
    .quadrant {
        padding: 30px 20px;
        min-height: 200px;
    }
    
    .quadrant-icon {
        font-size: 2.5rem;
    }
    
    .quadrant-content h2 {
        font-size: 1.3rem;
    }
}

/* Анимация появления */
@keyframes fadeIn {
    from {
        opacity: 0;
        transform: translateY(20px);
    }
    to {
        opacity: 1;
        transform: translateY(0);
    }
}

.quadrant {
    animation: fadeIn 0.6s ease-out;
}

.quadrant-1 {
    animation-delay: 0.1s;
}

.quadrant-2 {
    animation-delay: 0.2s;
}

.quadrant-3 {
    animation-delay: 0.3s;
}

.quadrant-4 {
    animation-delay: 0.4s;
}